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Checking electronic throttle control fault lamp -K132 > < Function of the electronic throttle system

A4 Mk1

Motronic fuel injection and ignition system (6 cyl.)
Checking electronic engine power control (electronic throttle)
Significance of EPC warning lamp (fault lamp for electronic throttle) in dash panel insert

"EPC" is an abbreviation for Electronic Power Control and refers to the electronic throttle control system.
 
A24-0143

→ Location of the EPC warning lamp

When the ignition is switched on, the engine control unit checks all the components of importance to the electronic throttle system.

After switching on the ignition the engine control unit switches on the EPC warning lamp. The EPC lamp goes out shortly after starting the engine, if, on the one hand, the engine control unit does not detect any faults in the EPC system, and, on the other, if actuation of the lamp by the engine control unit is OK.

If a fault is detected in the electronic throttle system while the engine is running, the engine control unit switches on the EPC warning lamp. (These faults are listed in the fault table). At the same time, an entry is made in the engine control unit fault memory.

Checking electronic throttle control fault lamp -K132 > < Function of the electronic throttle system